PLC Programming & Troubleshooting
Root-cause diagnostics, ladder logic updates, and cross-platform support including Allen-Bradley, Siemens, and Mitsubishi.
Service Portfolio
PLC Troubleshooting and Industrial Automation Services
From urgent diagnostics to phased modernization, HiTek Solutions brings practical execution across industrial control systems.
Controls Integration & Upgrades
Legacy migration planning, side-by-side testing, and staged implementation to reduce downtime risk.
HMI, Motion & Machine Coordination
Operator-centered HMI design and synchronized control across networked machines.
Machine Vision & Data Collection
Inspection, verification, and structured process data capture for quality and performance visibility.
AI-Enabled Knowledge Systems
Technical document assistants that improve troubleshooting speed and preserve operational knowledge.
Project Delivery Support
Clear scoping, implementation planning, and practical handoff for maintainable long-term operation.
Operator Safety Retrofit System
Four-Slide Machine Operator Injury-Risk Reduction
This engagement was executed to reduce operator injury risk on production Four-Slide machines through a standards-aligned safety architecture upgrade that preserved required production functionality.
Task Undertaken
- Reduce operator exposure to machine hazards on active production Four-Slide systems.
- Integrate modern safeguarding controls with legacy machine components and operating workflows.
- Establish dependable, production-ready safety behavior with minimal disruption to throughput.
Provided Solution
- Implemented an Allen-Bradley programmable safety relay as the central functional-safety control layer.
- Integrated Keyence laser scanners and complementary safety components for monitored perimeter and access protection.
- Validated integrated control response and interlock behavior to deliver high-integrity operator safeguarding performance.
Industrial Router Controls Redesign
Industrial Router Motion and Control System Replacement
This project delivered a complete controls redesign for an industrial router after repeated legacy servo-drive failures created reliability issues and operating friction.
Task Undertaken
- Replace the failure-prone legacy servo-drive platform and restore dependable machine operation.
- Redesign the machine control architecture around a Galil motion control system.
- Develop integrated machine logic and operator controls using Microsoft Visual Studio .NET.
- Provide recipe-based setup and rapid changeover capability through an onboard database.
Provided Solution
- Replaced existing servo drives with new hardware and commissioned the updated drive system.
- Integrated Galil motion control code with .NET application logic for coordinated machine behavior.
- Delivered a simplified operator interface: enter part dimensions in text fields, press Start, and execute cuts automatically.
- Implemented onboard recipe storage and recall so saved jobs could auto-configure machine setup parameters.
- Produced a highly usable, reliable machine that operators consistently preferred over the other available units.
Compliance Monitoring System
Main Coil Line Oxydizer Oven Compliance Monitoring
This project focused on protecting product quality and environmental compliance by continuously monitoring oven conditions and creating a complete reporting trail required by the State of Connecticut.
Task Undertaken
- Monitor the Main Coil Line Oxydizer Oven and notify operators when temperature dropped below required limits.
- Collect timestamped oven temperature data and line speed data in one operating record.
- Capture operator and engineering comments directly with the run data for traceability.
Provided Solution
- Developed an HMI view with live status lights and low/high temperature alarm indicators.
- Automated logging of timestamped process values to Excel, creating daily compliance-ready spreadsheets.
- Added structured comment entry so operator and Main Coil Line engineer notes were stored with each dataset.
Dimensional Metrology System
Automotive Camshaft Lobe Dimensional Measurement
This project measured automobile engine camshaft lobes at numerous points around each lobe and continuously evaluated dimensional conformance inside a live spreadsheet workflow. If a lobe was out of spec, the system immediately flagged it and prevented the part from being accepted.
Task Undertaken
- Collect precise measurement data around each camshaft lobe at multiple defined probe positions.
- Record each measurement set into a continuously updating spreadsheet for on-the-spot dimensional evaluation.
- Identify nonconforming lobe geometry as soon as a reading exceeded allowed tolerance bands.
Provided Solution
- Built an HMI workflow that guided operators through each measurement point and displayed live values.
- Automated Excel data capture and formula-based conformance checks for every inspected lobe.
- Added immediate out-of-spec alerts to support fast operator action and prevent bad-part acceptance.
Aerospace Reliability Validation System
Commercial Aircraft Oxygen Mask Switch Evaluation
Before this upgrade, the customer tested one switch at a time with a manual process that consumed significant operator time and introduced data-entry errors. In collaboration with their engineering team, we developed a new test fixture and automation workflow to validate switch behavior across descending and ascending cycles with reliable spreadsheet-based reporting and clear fail tracking.
Task Undertaken
- Replace one-at-a-time manual testing with a multi-switch validation method for commercial airline oxygen-mask release switches.
- Collaborate with customer engineering to define a fixture assembly that could test up to 25 switches in parallel.
- Monitor switch closure state through descending and ascending altitude simulation actions and identify any switch that failed test criteria.
Provided Solution
- Designed, built, tested, and commissioned a 25-switch fixture integrated with PLC controls, altitude simulation, and PC-based HMI workflow.
- Automated event capture and spreadsheet logging to reduce manual data handling errors and improve traceability.
- Delivered immediate pass/fail reporting for fast corrective action; customer feedback described this solution as revolutionizing that part of their business.
Machine Controls Modernization System
Formech Plastic Forming Machine Controls Replacement
This project delivered a full controls replacement and complete machine reprogramming for a Formech plastic forming system, including additional custom functions requested by the customer.
Task Undertaken
- Remove legacy control hardware and replace the machine control platform end-to-end.
- Reprogram complete machine operation sequences for stable thermoforming cycle performance.
- Add customer-specified functional enhancements beyond the original machine behavior.
Provided Solution
- Implemented a modernized controls architecture with updated PLC logic, I/O mapping, and operator workflow support.
- Delivered fully reworked machine software with validated process states, interlocks, and operational reliability improvements.
- Integrated and commissioned the new feature set to match customer requirements while preserving production usability.
Packaging Automation Build System
High-Volume Tub Sealer Machine Design and Build
For a nationally recognized consumer packaged-goods manufacturer, HiTek Solutions worked alongside a mechanical design group to design and build a production machine capable of placing and sealing lids onto tubs with repeatable, production-ready performance.
Task Undertaken
- Develop a production machine that could place the tub sealer onto containers consistently at manufacturing speed.
- Coordinate controls and machine requirements with a mechanical design partner to align motion, sequencing, and tooling behavior.
- Create an operator-ready system with clear machine states, heater control visibility, and maintainable operating modes.
Provided Solution
- Delivered an integrated automation system combining machine controls, HMI operation screens, and production sequencing logic.
- Supported the full build process from design collaboration through machine implementation and operational validation.
- Produced a working tub-sealing machine capable of reliable container handling and repeatable product sealing performance.
Service Area and Engagement Fit
We most often support industrial manufacturers in Connecticut and across the Northeast U.S. for PLC troubleshooting, controls upgrades, machine reliability, and modernization execution.
If your team is outside this region, contact us with scope, platform details, and schedule constraints. We can confirm whether remote support, travel-based support, or a phased hybrid model is the best fit.
Related Technical Paths
Need more than controls implementation? See our AI and industrial data solutions for document-grounded troubleshooting acceleration and operator support workflows.
You can also review practical references in our technical resource center before starting a discussion.
Regional Manufacturing Support Coverage
Our strongest coverage is Connecticut, Massachusetts, Rhode Island, New York, New Jersey, New Hampshire, and Pennsylvania for industrial automation support engagements.
This includes PLC troubleshooting, controls integration, machine vision, motion-control reliability, and modernization planning for active production environments.
Industrial Services FAQ
Do you provide PLC troubleshooting in Connecticut?
Yes. Connecticut is a primary service area for diagnostics, controls recovery, and reliability stabilization.
Can you support mixed-vendor control systems?
Yes. We work across Allen-Bradley, Siemens, Mitsubishi, and mixed legacy-modern architectures.
Can we engage you outside the Northeast?
Yes. We can scope remote, travel-based, or hybrid support based on urgency, complexity, and plant constraints.
Do you combine controls work with AI support?
Yes. We can layer AI knowledge workflows onto your controls and maintenance processes through our AI + Data services.
Need immediate troubleshooting support?
Share platform details and symptoms. We can help define next steps quickly.
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